Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Ashraf Y El-Dakar"'
Autor:
Ashraf Y. El‐Dakar, Shymaa M. Shalaby, Mohammed F. El Basuini, Mayada N. Atiya, Al‐Shaimaa M. Yakop, Elsayed M. Younis, Abdelwahab A. Abdelwarith, Simon J. Davies, Mohamed F. Abdel‐Aziz
Publikováno v:
Journal of the World Aquaculture Society, Vol 55, Iss 2, Pp n/a-n/a (2024)
Abstract The present work aimed to investigate the impacts of tank color (transparent, light blue, and red), feed pellet types (floating and sinking), and their interaction on the performance and welfare of red hybrid tilapia juveniles with an initia
Externí odkaz:
https://doaj.org/article/59112b7809ca4141a95163d8f929ba53
Autor:
Mohamed F. Abdel-Aziz, Dalia S. Hamza, Tasnim A. Elwazer, Ahmed S. Mohamed, Ashraf Y. El-Dakar
Publikováno v:
Heliyon, Vol 10, Iss 3, Pp e25208- (2024)
A 42 day factorial trial (3x2) was designed to evaluate the effect of short-term starvation with different feeding frequencies on performance, feed utilization, physiological status and appetite responses of red hybrid tilapia fingerlings. Eighteen p
Externí odkaz:
https://doaj.org/article/eab97c4673194adc8ecda19ab34b78cc
Autor:
Ashraf Y. El-Dakar, Amin A. Elgamal, Mohamed Abdel Baky Amer, Aala S. Mohammed, Mohamed F. Abdel-Aziz
Publikováno v:
Heliyon, Vol 9, Iss 9, Pp e19602- (2023)
A feeding trial was conducted to investigate the effect of fermented soybean meal with Bacillus subtilis bacteria on growth performance, feed utilization, carcass composition, and hematological, and histological section of the liver and intestine of
Externí odkaz:
https://doaj.org/article/a64eace528234ad99ee23b807c89404f
Autor:
Ashraf Y. El-Dakar, Shymaa M. Shalaby, Esraa Atta Elsheikh, Asmaa Abulass El-Desoki, Mohammed F. El Basuini, Omar Abdel-hamed Ahmed-Farid, Mohamed Fathy Abdel-Aziz
Publikováno v:
Scientific African, Vol 21, Iss , Pp e01755- (2023)
First report on using chamomile (Matricaria chamomilla) flower meal [CFM] and marjoram (Origanum majorana) leaves meal [MLM] as dietary supplements in low-protein fish diets on Nile tilapia (Oreochromis niloticus) reared in a bio-floc system. The exp
Externí odkaz:
https://doaj.org/article/46825bcea49242c6ad2d4404e9a5d56b
Autor:
Ashraf Y. El-Dakar, Shymaa M. Shalaby, Amar N. Salama, Abdel-Rahman A. Sabra, Elsayed M. Younis, Abdelwahab A. Abdelwarith, Simon J. Davies, Afaf N. Abdel Rahman, Mohamed F. Abdel-Aziz
Publikováno v:
Aquaculture Reports, Vol 30, Iss , Pp 101604- (2023)
High feed prices and limited access to feed are two critical problems faced by fish producers. One approach that farmers may consider is using less expensive and locally available components. We conducted a 60-day feeding trial to investigate the con
Externí odkaz:
https://doaj.org/article/f03985feb1ab4c65acac241864714f64
Autor:
Mohamed F.A. Abdel-Aziz, Mohammed F. El Basuini, Islam I. Teiba, Mohamed M.M. Metwally, Ashraf Y El-Dakar, Amr M. Helal, Habib Ul Hassan, Abdel-Moniem M. Yones, Ahmed Shehab, Mahmoud A.O. Dawood
Publikováno v:
Annals of Animal Science.
Nile tilapia is known for its relative tolerance to some biotic and abiotic stressors. However, long-period water exchange may impair the health status and, thereby, the growth performance and feed utilization. In this regard, using herbal extracts m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a1b23fda77e45a293304e32cd2ec403
https://doi.org/10.2478/aoas-2023-0017
https://doi.org/10.2478/aoas-2023-0017
Autor:
Ashraf Y. El-Dakar, Shymaa M. Shalaby, Bahig R. Nemetallah, Norhan E. Saleh, Eman M. Sakr, Mohamed M. Toutou
Publikováno v:
Egyptian Journal of Aquatic Research, Vol 41, Iss 2, Pp 203-210 (2015)
This study was carried out on sea bream (Sparus aurata) with initial fish weight of 1.9 ± 0.1g to evaluate the effect of addition of basil (Ocimum basilicum), in different forms on; growth performance, feed utilization, body composition, biometric i
Externí odkaz:
https://doaj.org/article/e53893fc23f2429abd247a93923ac004
Publikováno v:
Journal of Animal and Poultry Production. 12:229-233
A 15 day acclimation experiment was conducted to determine the optimum feeding level during an acclimatization period to marine water for improving survival rate and gonadosomatic index (GSI) of adult red hybrid tilapia in high salinities. This exper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b06fe90ea5c5700beb34f7c424de918d
https://doi.org/10.21608/jappmu.2021.85100.1016
https://doi.org/10.21608/jappmu.2021.85100.1016
Autor:
Ashraf Y. El-Dakar
Publikováno v:
Egyptian Journal of Aquatic Biology and Fisheries. 25:437-446
The present study was conducted to create a new strategy for increasing the transport efficiency of brood-stock Nile tilapia (Oreochromis niloticus) using clove and mint oils for 3.5 h. The fish study was exposed to conditions simulating those normal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c928f3d1c3ab4c8567cecb6e4d8babd
https://doi.org/10.21608/ejabf.2021.190302
https://doi.org/10.21608/ejabf.2021.190302
Autor:
Ashraf Y. El-Dakar
Publikováno v:
Egyptian Journal of Aquatic Biology and Fisheries. 25:839-856
A 6-weeks factorial trial (2 × 2) was conducted to determine the optimum level of dietary protein and the optimum feeding rate for the best growth and feed efficiency of hybrid tilapia, Oreochromis niloticus × Oreochromis aurea. Two dietary protein
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3ba7bf70d9a753426541304a28c4318
https://doi.org/10.21608/ejabf.2021.195285
https://doi.org/10.21608/ejabf.2021.195285